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Accrued Expenses
12 Months Ended
Dec. 31, 2021
Accrued Expenses  
Accrued Expenses

5. Accrued Expenses

Accrued expenses consist of the following:

December 31, 

    

2021

    

2020

Clinical trials

$

2,499

$

795

Professional fees

 

181

 

255

Payroll and related expenses

 

2,686

 

1,697

Accrued expenses

$

5,366

$

2,747